3125131 has 4 divisors (see below), whose sum is σ = 3209632. Its totient is φ = 3040632.

The previous prime is 3125117. The next prime is 3125147. The reversal of 3125131 is 1315213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3125131 - 2⁵ = 3125099 is a prime.

It is a super-2 number, since 2×3125131² = 19532887534322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42195 + ... + 42268.

It is an arithmetic number, because the mean of its divisors is an integer number (802408).

Almost surely, 2^3125131 is an apocalyptic number.

3125131 is a deficient number, since it is larger than the sum of its proper divisors (84501).

3125131 is an equidigital number, since it uses as much as digits as its factorization.

3125131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84500.

The product of its digits is 90, while the sum is 16.

The square root of 3125131 is about 1767.8040049734. The cubic root of 3125131 is about 146.2029297958.

The spelling of 3125131 in words is "three million, one hundred twenty-five thousand, one hundred thirty-one".